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I saw a talk the other day done by an independent researcher saying a similar thing, comparing a high end Nvidia card to a Intel quad core chip. The speed up wa
by rythie 16y ago
I saw a talk the other day done by an independent researcher saying a similar thing, comparing a high end Nvidia card to a Intel quad core chip. The speed up was really only 1-2x most of the time and researcher thought maybe 10x could be achieved for some codes but 100x was not acheivable.
- mrb 16y agoYes, 100x _is_ achievable. But only with embarrassingly parallel workloads and when comparing a high-end GPU against a modest dual-core CPU. For example the AMD HD 5970 can execute exactly 100x more 32-bit integer or floating point operations per second than a dual-core 2.9GHz CPU with 128-bit SSE code. Embarrassingly parallel workloads such as password hash cracking scale exactly linearly with this 100x difference.
- Andys 16y agoIn terms of raw FLOPs, the current top ATI card (the $2k FireStream) is 4x the double precision FLOPs of the current top Intel 6-core ($1k).
- mrb 16y agoThe Opteron 6176 SE provides 38% more DP FLOPS (110.4) than the "current top Intel 6-core" i7-980X (80). So the former reduces the gap even more.